Oil burner unit



March 8- c. L. GOHMANN 2,112,460

OIL BURNER UNIT Filed July 22, 1955 2 Sheets-Shae 1 [710671 for Czar/e11. 65km);

ara 29,1938. QL OHMANN 2,112,460

7 on, BURNER UNIT Filed July 22, 1935 2 Sheets-Shem- )J/forzzey Patented Mar. 29, 1938 e V UNITED STATES PATENT OFFICE on. BURNER UNIT Charles L. Gol 'mann, New Albany, Ind. Application July 22, 1935, Serial No. 32,508

" 1 Claim. (cries-44),

\ This invention relates to an oil burner unit Figure 7 is a section along line 1-1 of Figj which is primarily intended for use in the soure 5; 7 called family oil burning cooking and heating Figure 8 is an enlarged section along lineB-U stoves, but which is generally useful for heating of Fig. 6. a 5 purposes. In devices of this character, oil is fed In accordance with my invention, all of the 5 from a reservoir throughv valved pipes to an oil burner unit parts, i. e., the reservoir, burner, burner usually containingconcentric oil grooves valves and oil feed pipes, are mounted upon a in which circular band wicks are placed. 1 base so that they maybe inserted into and re- J While these parts are variously arranged in moved from the heating chamber of the stove as 10 different stoves, it is believed that reference to the a unit. The base may be constructed in any suit- 10 general and representative arrangements usually able form and of any suitable material. As employed will serve to make the present invenshown', it is of rectangular skeleton form, having tion more clear. In such arrangements, the stove angle iron side membersl which are connected ordinarily contains a burner chamber extending together by spaced cross members 2 of T shape. from the front of the stove to its rear. Twin At one end of the base, supporting legs 3 are 15 burners are suitably mounted in parallel or series provided for an oil sump 4. The sump is adapted "between th front and rear walls of the burner to support at a suitable elevation an inverted chamber. An oil pipe extends from the under reservoir, 5. 1 side of eachburner forwardly to its valve adjacent The reservoir, which is of a well known type,

the front wall. An oil supply pipe extends from has a valved outlet 6 which is held closed by a the valves either rearwardly under one or both suitable spring (see Figure 7) until the reservoir of the burners to a reservoir built in the rear is inverted and positioned upon the sump, where- 01' the stove, or, around the oven chamber of the upon the valve stem strikes the bottom of the stove to a reservoir on the other side thereof. sump, thus opening the valve. When the valve With any of these arrangements, access to the is opened, oil flows into the sump, filling it and its various parts is limitedby the stove structure outlet pipe 1, up to th flow regulating valves, while the oil feed lines are often subjected to a until the oil level reached in the sump is higher degree of heat sufficient to produce gasiflcation of than the lowermost portion of the reservoir valved oil therein. Both of these results are objecoutlet 6. At this level, air is prevented from tionable. entering the reservoir; hence, the oil flow there- 30 The principal object of this invention is to from ceases. avoid these objections and, more particularly, The burners indicated generally at 8 are also to provide a simple, compact structure which of a well-known type having a bottom plate 9 does not require attachment to the stove but which is P v ded with er and Outer Wickwhich, on the contrary, may be inserted into and receiving e r c oil oo e 0- es removed from th stov as a unit. grooves are separated at all points by a flat Another object is to provide a novel arrangeraised ridge 1 I, except at e Point Whe e the ment by which the gasification of oil in the feed oil supply p e I! communicates with t e bu ne lines is either eliminated or reduced to a min- (see Fig. 8),. The ridge II is provided with a imum. series of short, up-right air intake pipes l3 and 40 A further object is to provide a simple, comdirectly over the ridge is placed another ridge pact unitary structure which is inexpensive to member I4, having openings into which the upconstruct, install and service. l per ends of the air pipes l3 fit. On opposite sides A unit constructed in accordance with my inof each groove l0 and of the wick contained in I 5 vention is illustrated in the accompanying drawsuch groove an up-right perforated cylinder i5 ings, whereintis positioned. These cylinders, four in number, Figure 1 is a side elevation; define alternate gas and air chambers. The top Figure 2 is a bottom plan view; of each burner is also provided with aperforated Figure 3 is a section along line 3-3 of Figcover plate l6 which fits over the cylinders I5.

5() ure 1; Naturally, when a wick is ignited, the oil begins Figure 4 is a detail of the burner plate support; to vaporize. As the vapor rises between the per- Flgure 5 is a partly broken section along line forated shells or cylinders l5, air is drawn in 5-5 of Figure l; through the perforations and mixed with the Figure 6 is a section along line 6-4 of Figvapor to form the combustible mixture. The

ure 5; draft between the shells lifts the flame entirely 55 above the wicks; hence, the latter function only to facilitate the starting of the burner. By the time the burner is hot enough to vaporize the oil in the troughs completely, the vaporizing chamber will be heated sufliciently to vaporize the oil as it enters.

The burners 8 should be supported at a level such that oil from the reservoir will cease flowing to the burners when the oil grooves in the burners are half full of oil. The burners should, of course, be properly leveled to produce a uniform depth of oil in the grooves, and such level may be obtained by adjusting the level of the stove accordingly. The burners may be directly supported on or secured to the base I. They preferably, however, are mounted on a plate H which is adjustably secured to the base I through the agency of screws l8 threaded to the base and having means at their upper ends for holding the plate. When so mounted, final adjustments of the burner levels can be effected by the screws.

The sump outlet oil pipe I and burner supply oil pipe l2 are, of course, connected to each other through regulating valves and suitable piping. In accordance with previous practice, these valves would be provided with short valve stems and located on the stove adjacent the front wall thereof or on a stand which is set apart from the stove. In accordance with my invention, they are provided with long valve stems and positioned under the reservoir at the opposite or reservoir end of the unit. Accordingly, the sump outlet pipe I is connected directly to one side of the flow regulating valves l9 and l9-a. The other side of each of the valves l9 and l9-a is connected through pipes 20 and 20-41 respectively to the front and rear burners 8. The valve stems 2| and ll-a of the valves are made of a length able openings in the front wall of the stove so that the valves may be regulated from the exterior thereof.

With the arrangement thus described, it will be appreciated that the amount of oil piping exposed to the heat of the burner is reduced to a minimum. Hence, the possibility of oil being vaporized in such pipes is likewise reduced. Such vaporization is highly undesirable because it produces an uneven and spurting" flame. In some instances, the pressure of the vaporized 011 causes it to spurt sufficiently to extinguish the flame. The reduction of exposed oil piping is, of course, accomplished by placing the valves adjacent the reservoir while convenient access for regulating the valves is maintained by providing them with long valve stems. It will also be appreciated that the structure herein described is very sturdy and compact and one which can be readily inserted within a heating chamber of sufllclent size to receive it. When any parts require adjustment or repair, such parts are, by virtueof the unitary and removable structure herein proposed, readily accessible.

Having described my invention, I claim:--

A portable oil burner unit of the type intended for insertion into and, removal from the heating chamber of a stove as an unit, comprising a horizontal shallow unitary frame, an oil sump extending above and fixedly mounted on said frame adjacent its rear end. said sump being adapted to receive an oil reservoir, an oil burner extending above and mounted on said frame between said sump and the front end of the frame, an oil regulating valve supported by said frame below and adjacent said sump, a short oil conduit connecting said sump to one side of said valve, another oil conduit connecting the opposite side of said valve to said burner, and a long valve stem extending from said valve to the front end of said frame.

CHARLES L. com/mun. 

